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48 lines
1.6 KiB
Bash
Executable File
48 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# test the behavior of 'tee --append'
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# Copyright (C) 2025-2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ tee
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# Test the short and long option.
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for opt in -a --append; do
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echo 'line 1' > inp || framework_failure_
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cat inp > exp || framework_failure_
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# POSIX says: "Processing of at least 13 file operands shall be supported."
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files=$(seq 13)
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# Setup and verify the files.
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tee $files <inp >out || fail=1
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for f in out $files; do
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compare exp $f || fail=1
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done
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echo 'line 2' > inp || framework_failure_
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cat inp >> exp || framework_failure_
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# Only one -a or --append option is needed, but check that 'tee' behaves the
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# same with duplicate options.
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opts=$(for f in $files; do printf -- ' %s %s' $opt $f; done)
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tee $opts < inp > out || framework_failure_
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# Standard output should only have the line we appended.
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compare inp out || fail=1
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# The files should have line 1 and line 2.
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for f in $files; do
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compare exp $f || fail=1
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done
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done
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Exit $fail
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